title: Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niška Banja, Serbia.
abstract: In Niška Banja, a spa town in a radon-prone area in southern Serbia, radon ((222)Rn) and thoron ((220)Rn) activity concentrations were measured continuously for one day in indoor air of 10 dwellings with a SARAD RTM 2010-2 Radon/Thoron Monitor, and equilibrium factor between radon and its decay products and the fraction of unattached radon decay products with a SARAD EQF 3020-2 Equilibrium Factor Monitor. Radon concentration in winter time ranged from 26 to 73 100 Bq m(-3) and that of thoron, from 10 to 8650 Bq m(-3). In the same period, equilibrium factor and the unattached fraction varied in the range of 0.08 to 0.90 and 0.01 to 0.27, respectively. One-day effective doses were calculated and were in winter conditions from 4 to 2599 μSv d(-1) for radon and from 0.2 to 73 μSv d(-1) for thoron.
authors.affiliation: Radon Center, Department of Environmental Sciences, JoŽef Stefan Institute, Jamova cesta 39, Ljubljana 1000, Slovenia.
authors.forename: J
authors.initials: J
authors.lastname: Vaupotič
authors.forename: T
authors.initials: T
authors.lastname: Streil
authors.forename: S
authors.initials: S
authors.lastname: Tokonami
authors.forename: Z S
authors.initials: ZS
authors.lastname: Žunic
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D006798:Housing; D006801:Humans; D011829:Radiation Dosage; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis*; D017687:Radon Daughters / Q000032:analysis*; D012621:Seasons; D055771:Serbia
chemical_list: D000396:Air Pollutants, Radioactive; D017687:Radon Daughters; D011886:Radon